The Origin of Blue Cores in Hubble Deep Field E/S0 Galaxies

2001 ◽  
Vol 562 (1) ◽  
pp. L23-L27 ◽  
Author(s):  
Felipe Menanteau ◽  
Raul Jimenez ◽  
Francesca Matteucci
Keyword(s):  
S0 Galaxies ◽  
Hubble Deep Field

scholarly journals Formation of S0 galaxies through mergers

2014 ◽  
Vol 570 ◽  
pp. A103 ◽  
Author(s):  
Alejandro Borlaff ◽  
M. Carmen Eliche-Moral ◽  
Cristina Rodríguez-Pérez ◽  
Miguel Querejeta ◽  
Trinidad Tapia ◽  
...  
Keyword(s):  
S0 Galaxies

scholarly journals S0 galaxies are faded spirals: clues from their angular momentum content

2018 ◽  
Vol 476 (2) ◽  
pp. 2137-2167 ◽  
Author(s):  
Francesca Rizzo ◽  
Filippo Fraternali ◽  
Giuliano Iorio
Keyword(s):  
Angular Momentum ◽  
S0 Galaxies

scholarly journals Kinematics of the outskirts of S0 galaxies from PNe and GCs

2016 ◽  
Vol 11 (S321) ◽  
pp. 290-290
Author(s):  
A. Cortesi ◽  
C. Mendes de Oliveira
Keyword(s):  
Galaxy Formation ◽  
Globular Clusters ◽  
Velocity Dispersion ◽  
Spiral Galaxies ◽  
Formation Mechanisms ◽  
Stellar Kinematics ◽  
Lenticular Galaxies ◽  
Star Forming ◽  
Flat Rotation Curves ◽  
S0 Galaxies

AbstractThe stellar kinematics of the discs of S0 galaxies (as obtained using planetary nebulae, PNe, and integrated stellar light data) is comparable to that of spiral galaxies, with similar flat rotation curves and falling velocity dispersion profiles, but they present a larger amount of random motions. The only other tracer available to probe the kinematics of individual early-type galaxies are globular clusters (GCs). GCs’ formation is intimately connected to a galaxy major star forming event(s) and GCs are, therefore, good proofs of galaxy formation histories. We directly compare a sample of PNe, GCs, and stellar velocities out to 4 effective radii, in the S0 galaxies NGC 2768 and NGC 1023. In particular, we test a new method for studying GC properties and we find that these two lenticular galaxies are consistent with being formed through different formation mechanisms.

A new jet/outflow maser in the nucleus of the Compton-thick AGN IRAS 15480-0344

2017 ◽  
Vol 13 (S336) ◽  
pp. 129-132
Author(s):  
Paola Castangia ◽  
Andrea Tarchi ◽  
Alessandro Caccianiga ◽  
Paola Severgnini ◽  
Gabriele Surcis ◽  
...  
Keyword(s):  
Detection Rate ◽  
Radio Continuum ◽  
Continuum Emission ◽  
Maser Emission ◽  
X Ray ◽  
Vlbi Observations ◽  
S0 Galaxies ◽  
Water Maser

AbstractInvestigations of H2O maser galaxies at X-ray energies reveal that most harbor highly absorbed AGN. Possible correlations between the intrinsic X-ray luminosity and the properties of water maser emission have been suggested. With the aim of looking into these correlations on a more solid statistical basis, we have search for maser emission in a well-defined sample of Compton-thick AGN. Here we report the results of the survey, which yielded a surprisingly high maser detection rate, with a particular focus on the newly discovered luminous water maser in the lenticular (field) S0 galaxy IRAS 15480-0344. Recently, VLBI observations have been obtained to image the line and continuum emission in the nucleus of this galaxy. The radio continuum emission at VLBI scales is resolved into two compact components that are interpreted as jet knots. Based on the single-dish profile, the variability of the maser emission, and the position of the maser spots with respect to these continuum sources, we favor of a jet/outflow origin for the maser emission, consistent with similar cases found in other radio-quiet AGN. This scenario is consistent with the hypothesis of the presence of strong nuclear winds recently invoked to explain the main characteristics of field S0 galaxies.

scholarly journals Bar rejuvenation in S0 galaxies?

2020 ◽  
Vol 495 (4) ◽  
pp. 4548-4556
Author(s):  
Sudhanshu Barway ◽  
Kanak Saha
Keyword(s):  
Star Formation ◽  
Spiral Galaxies ◽  
Theoretical Studies ◽  
Tidal Interactions ◽  
Colour Measurements ◽  
Induce Star Formation ◽  
Minor Mergers ◽  
Stellar Masses ◽  
S0 Galaxies ◽  
Intermediate Density

ABSTRACT Based on the colour measurements from a multiband, multicomponent 2D decompositions of S0 and spiral galaxies using SDSS images, we found that bars are bluer in S0 galaxies compared to the spiral galaxies. Most of the S0s in our sample have stellar masses ∼L* galaxies. The environment might have played an important role as most of the S0s with bluer bars are in the intermediate-density environment. The possibility of minor mergers and tidal interactions that occurs frequently in the intermediate-density environment might have caused either a bar to form and/or induce star formation in the barred region of S0 galaxies. The underlying discs show the usual behaviour being redder in S0s compared to spiral galaxies while the bulges are red and old for both S0 and spiral galaxies. The finding of bluer bars in S0 galaxies is a puzzling issue and poses an interesting question at numerical and theoretical studies most of which shows that the bars are long-lived structures with old stellar populations.

scholarly journals Models for Evolution of Dusty and E/S0 Galaxies Seen in Multiband Surveys

2003 ◽  
Vol 587 (1) ◽  
pp. 90-116 ◽  
Author(s):  
C. K. Xu ◽  
C. J. Lonsdale ◽  
D. L. Shupe ◽  
A. Franceschini ◽  
C. Martin ◽  
...  
Keyword(s):  
S0 Galaxies

scholarly journals Caltech Faint Galaxy Redshift Survey. IX. Source Detection and Photometry in the Hubble Deep Field Region

2000 ◽  
Vol 127 (1) ◽  
pp. 1-9 ◽  
Author(s):  
David W. Hogg ◽  
Michael A. Pahre ◽  
Kurt L. Adelberger ◽  
Roger Blandford ◽  
Judith G. Cohen ◽  
...  
Keyword(s):  
Field Region ◽  
Source Detection ◽  
Faint Galaxy ◽  
Redshift Survey ◽  
Galaxy Redshift ◽  
Hubble Deep Field

scholarly journals Stellar population trends in S0 galaxies

2010 ◽  
Vol 412 (1) ◽  
pp. 423-447 ◽  
Author(s):  
L. C. Prochaska Chamberlain ◽  
Stéphane Courteau ◽  
Michael McDonald ◽  
James A. Rose
Keyword(s):  
Stellar Population ◽  
Population Trends ◽  
S0 Galaxies

scholarly journals Which bulges are favoured by barred S0 galaxies?

2016 ◽  
Vol 463 (1) ◽  
pp. L41-L45 ◽  
Author(s):  
Sudhanshu Barway ◽  
Kanak Saha ◽  
Kaustubh Vaghmare ◽  
Ajit K. Kembhavi
Keyword(s):  
S0 Galaxies

Erratum: XMM-Newton view of the Hubble Deep Field-North and Groth-Westphal Strip regions

2003 ◽  
Vol 324 (5) ◽  
pp. 506-506
Author(s):  
T. Miyaji ◽  
R.E. Griffiths ◽  
D. Lumb ◽  
V. Sarajedini ◽  
H. Siddiqui
Keyword(s):  
Hubble Deep Field
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